Improvement in spindle-bearings for spinning-machines



UNITED .STATES PATENT OFFICE.

GEOEGE" E1CHAEDSON, oF LOWELL, MASSACHUSETTS, ASSIGNOE To HLM; SELF AND ALEXANDER C. CUMNCCK, oF SAME PLACE.

`IMPRovElvIENT IN SPINDLE-BEARINGS FoRsPlNNlNG-MACHINES.

Speciication forming part of Letters Patent No. 129,903, dated July 30, 1872l To allpersons to whom tlzfesepresnts may come: 1 Be it known that I, GEORGE RICHARDSON, of Lowell, of the county of Middlesex and State of Massachusetts, have made a new and useful Invention having reference to Spinning or Roving Machine Spindles; and do hereby declare the same to be fully described in the following specification and represented in the accompanying drawing, of which- Figure 1 is a front view, and Fig. 2 a vertical section of a spindleand its supports as provided with my invention.

In such drawing, A denotes the spindle; B, its upper and C the lower supporting-rails; D, the bolster ;E, the spindle foot-Stop; F, the whirl77 or driving-wheel, of the spindle; and Gr, a bobbi-n applied to the spindle. The spindie-bearing or part a, which is within the bolster D, is made conical instead of being cylindrical, as it has heretofore been customary to make it; the said conical part being extended a short distance above the bolster, from whence the spindle tapers upward, as shown, to receive the bobbin. The bolster is also made with a conical bore, b, to fit to the conical bearing a, and is provided with a receiving trough or cup, o, at top, and an oilchamber, d, within the bore,each encompassing the bore. Furthermore, the bolster is fitted to its supporting-rail so as to be adjustable vertically therein and on the spindle, such bolster being held in place by a clamp-screw, e, Screwed into the rail and against the bolster. This method of applying the bolster to the rail and constructing the contiguous bearingsurfaces of the bolster and spindle enables the bolster to be raised upon the spindle so as to bring their bearing-surfaces to a fit to each other, as occasion may require, after they may have become worn by attrition against' each other--a matter which could not be done were the bearing a of the spindle and the bore b of the bolster cylindrical. Furthermore, the improved construction of the bore and bearing causes the oil, while the spindle may be in revolution, to be forced and held upward, toward, or in the oilchamber of the bolster, and admits of its descending therefrom on the bearing when the spindle may be at rest, thus preventing undue leakage or waste of oil. The whirl is screwed upon Ythe spindle, which is made with a screw, f, to receive it, and a shoulder, h, at the base of the screw, the whirl being provided with a corresponding female screw, g, and such whirl is arranged on the spindle close to the foot-step E so as to serve as a cap or cover thereto tol protect such from dust and extraneous matters. This arrangement ofthe spindle is very favorable to the prevention of vibration of the spindle when running, especially of that part which supports the bobbin. The object of so applying the whirl to the Spindle, in order that it may be separable therefrom, is to enable ,the spindle, when provided with the conical bearing and the bolster with the conical bore, to be introduced into or removed from the bearing and the step, as occasion may require. With the conical bearing to the bolster and step, elevating the spindle a little at any time will enable the oil to freely flow down out of the oil-reservoir and upon the bearing of the spindle. Thus it will be seen that great advantages arise from the conical bearing and bore, as explained.

With the bolster provided with the oil-receiving cup c, and the closed reservoir d, and tapering bore to receive the spindle, tapered where within such bore, as shown, it will be seen that the oil will not only be prevented from being thrown out of the reservoir by the spindle while in revolution, but, on account of the close fit of the bearing-surfaces, such oil will be prevented from leaking down upon that part of the Spindle which may be below the bolster. Thus my limproved bolster, to receive and operate with the conical spindle, as set forth, is of great advantage in preventing waste of the oil, such as results from a cylindrical bearing and bore, as they may become worn.

I would remark that I am aware of the subjects of the British patents Nos. 1,321 of 1860, and 1,907 of 1856. In one of these, where an open oil trough or reservoir is shown with the bolster, the taper of the spindle is the reverse of what it is in my arrangemenuand operates to assist gravity in wasting the oil, the tendency of the centrifugal force being to draw the oil from the cup or reservoir and waste it. In the other case the tap er of the journal and bearing is the same as in my arrangement 5 tapering spindle, operates to prevent the oil from being raised out of the reservoir by the tapering spindle. I would remark that I make no claim to a cylindrical bearing and a covered oil-reservoir to the spindle and bolster,

as such are not productive of the advantageous effects due to my improvement or invention.

I claim- The spindle tapered to fit to the bore of the bolster, and the said bolster provided with the covered oil-reservoir and the tapering bore to receive the taper of the spindle, all being in manner and to operate substantially as explained.

GEO. RICHARDSON.

Witnesses R. H. EDDY7 J. R. SNOW. 

